<template>
  <div class="top-category">
    <div class="container">
      <!-- 面包屑 -->
      <bread>
        <bread-item to="/">首页</bread-item>
        <Transition name="fade-right" mode="out-in" appear :key="topCategory.id">
          <bread-item>{{ topCategory.name }}</bread-item>
        </Transition>
      </bread>
      <!-- 轮播图 -->
      <carousel :sliders="sliders" auto-play style="height:500px" />
      <!-- 全部分类 -->
      <div class="sub-list">
        <h3>全部分类</h3>
        <ul>
          <li v-for="sub in topCategory.children" :key="sub.id">
            <a href="javascript:;">
              <img v-lazy="sub.picture">
              <p>{{ sub.name }}</p>
            </a>
          </li>
        </ul>
      </div>
      <!-- 各个分类的推荐商品 -->
      <div class="ref-goods" v-for="sub in subList" :key="sub.id">
        <div class="head">
          <h3>- {{ sub.name }} -</h3>
          <p class="tag">温暖柔软，品质之选</p>
          <more :path="`/category/sub/${sub.id}`" />
        </div>
        <div class="body">
          <goods-item v-for="goods in sub.goods" :key="goods.id" :goods="goods" />
        </div>
        <div>
        </div>
      </div>

    </div>
  </div>
</template>

<script setup>
import { ref, computed, watch } from 'vue';
import { useStore } from 'vuex'
import { useRoute } from 'vue-router'
import BreadItem from '@/base-ui/bread/bread-item.vue';
import Carousel from '@/base-ui/carousel.vue';
import Home from '@/api/modules/home';
import Category from '@/api/modules/category';
import GoodsItem from "./cpns/goods-item.vue"
let sliders = ref([])

Home.bannerList().then(({ code, result }) => {
  if (code == 1) {
    sliders.value = result
  }
})
const store = useStore()
const route = useRoute()
const topCategory = computed(() => {
  let cate = {}
  // 当前顶级分类 === 根据路由上的ID去vuex中category模块的list中查找
  const item = store.state.category.list.find(item => {
    return item.id === route.params.id
  })
  // 找到数据赋值
  if (item) cate = item
  return cate
})

// 获取各个子类目下推荐商品
const subList = ref([])
const getSubList = () => {
  Category.topCategoryList(route.params.id).then(({ code, result }) => {
    code == 1 && (subList.value = result.children)
  })
}
watch(() => route.params.id, (newVal) => {
  // newVal && getSubList() 加上一个严谨判断，在顶级类名下才发请求
  if (newVal && `/category/${newVal}` === route.path) getSubList()
}, { immediate: true })



</script>

<style lang="less" scoped>
.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 100px;
  }

  .sub-list {
    margin-top: 20px;
    background-color: #fff;

    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;
      min-height: 160px;

      li {
        width: 168px;
        height: 160px;

        a {
          text-align: center;
          display: block;
          font-size: 16px;

          img {
            width: 100px;
            height: 100px;
          }

          p {
            line-height: 40px;
          }

          &:hover {
            color: @xtxColor;
          }
        }
      }
    }
  }

  // 推荐商品
  .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;

    .head {
      .xtx-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }

      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        position: relative;
        top: -20px;
      }
    }

    .body {
      display: flex;
      justify-content: flex-start;
      flex-wrap: wrap;
      padding: 0 65px 30px;
    }
  }
}
</style>
